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Improvement in Arrangement of Metall urgi'c Furnaces So ae to use theWaste Heat under Steam-Boilers.

N0. 133,114. Patented Nov.19,1872.

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UNITED STATES A PATENT OFFICE.

GEORGE NIliflIO, OF JERSEY CITY, NEW JERSEY.

IMPROVEMENT IN THE ARRANGEMENT 0F METALLURGIC FURNACES 80 AS TO USE THEWASTE HEAT UNDER STEAM-BOILERS.

. Specification forming part of Letters Patent No. 133,114, datedNovember 19, 1872 antedated November 13,

To all whom it may concern:

' economically use the escape heat and gases from furnaces constructedfor melting caststeel and apply the same to generate steam, of which thefollowing is a specification:

Nature and Object of the Invention.

The nature of my invention relates to improvements in arranging boilersand furnaces in steel-works so as to utilize the escape heat from thevarious furnaces wherein the steel is being melted, and using the saidheat to make steam to drive suitable machinery to work the metal so madeinto merchantable shapes. To accomplish this, I arrange a number offurnaces side by side and in a line with the boiler, say twelve innumber, (more or less,) and having a boiler elevated so that the heatescaping from the furnaces shall pass underneath the boiler and alongthe bottom to the end, thence through the flues into the chimney. Thisarrangement may be carried out by having one row of furnaces on eachside of the boiler or boilers, or a single row, as the case may be. Iprefer twelve furnaces in a row, so that I can use six alternatelythatis to say, six one day and six the next, thus giving time for repairs.

Description of the Accompanying Drawing.

Figure 1 is a vertical sectional side view of the boilers, furnaces, andchimney. Fig. 2 is a vertical sectional end View.

Similar lettersindicate corresponding parts.

General Description.

A A A and B B B, Fig. 1, represent the furnaces. The arrows indicate thedirection taken by the escape heated air and gases from thesteel-furnaces. G, the boiler flue; E, the chimney; I I are cast-ironsupports for the boilers; F, the boiler; H, the dome; I, supports toboiler resting on wall 2 2; E, the chimney.

Four pair of boilers may be connected with one chimney, thus radiatingfrom the center of the chimney north, south, east, and west, each boileror pair of boilers having twentyfour furnaces, in all ninety-six. Thefurnaces being used alternatelythat is to say, every other one.the heatwould be distributed along the whole length of the boilers, returningthrough the fines to the chimney. In case too much steam is being made,suitable dampers may be arranged so that the heated air and gases willnot pass through the fines but will escape into the chimney direct. Thisconfiguration of boilers and furnaces will remove all necessity forextra boilers and fuel in steelworks, as more steam will thus be madethan can be used by all the machinery, hammers, rolls, &c., and withoutextra cost of fuel aside from that used in melting the steel.

I claim as my invention The configuration of boilers and furnaces,arranged to operate substantially as described.

GEORGE NIMMO.

Witnesses A. B. BUNTING, R. V. vA. GUINON.

